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Make sure that __libcpp_compressed_pair_imp default-constructs its' members, rather than value-initializing them. Fixes PR#24137 

llvm-svn: 242377
This commit is contained in:
Marshall Clow 2015-07-16 03:05:06 +00:00
parent 041e6deb2c
commit 05fc0f25d6
2 changed files with 23 additions and 7 deletions
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14
libcxx/include/memory
View File

@ -2035,11 +2035,11 @@ public:
typedef const typename remove_reference<_T1>::type& _T1_const_reference;
typedef const typename remove_reference<_T2>::type& _T2_const_reference;
_LIBCPP_INLINE_VISIBILITY __libcpp_compressed_pair_imp() {}
_LIBCPP_INLINE_VISIBILITY __libcpp_compressed_pair_imp() : __first_(), __second_() {}
_LIBCPP_INLINE_VISIBILITY explicit __libcpp_compressed_pair_imp(_T1_param __t1)
: __first_(_VSTD::forward<_T1_param>(__t1)) {}
: __first_(_VSTD::forward<_T1_param>(__t1)), __second_() {}
_LIBCPP_INLINE_VISIBILITY explicit __libcpp_compressed_pair_imp(_T2_param __t2)
: __second_(_VSTD::forward<_T2_param>(__t2)) {}
: __first_(), __second_(_VSTD::forward<_T2_param>(__t2)) {}
_LIBCPP_INLINE_VISIBILITY __libcpp_compressed_pair_imp(_T1_param __t1, _T2_param __t2)
: __first_(_VSTD::forward<_T1_param>(__t1)), __second_(_VSTD::forward<_T2_param>(__t2)) {}
@ -2128,9 +2128,9 @@ public:
typedef const _T1& _T1_const_reference;
typedef const typename remove_reference<_T2>::type& _T2_const_reference;
_LIBCPP_INLINE_VISIBILITY __libcpp_compressed_pair_imp() {}
_LIBCPP_INLINE_VISIBILITY __libcpp_compressed_pair_imp() : __second_() {}
_LIBCPP_INLINE_VISIBILITY explicit __libcpp_compressed_pair_imp(_T1_param __t1)
: _T1(_VSTD::forward<_T1_param>(__t1)) {}
: _T1(_VSTD::forward<_T1_param>(__t1)), __second_() {}
_LIBCPP_INLINE_VISIBILITY explicit __libcpp_compressed_pair_imp(_T2_param __t2)
: __second_(_VSTD::forward<_T2_param>(__t2)) {}
_LIBCPP_INLINE_VISIBILITY __libcpp_compressed_pair_imp(_T1_param __t1, _T2_param __t2)
@ -2218,11 +2218,11 @@ public:
typedef const typename remove_reference<_T1>::type& _T1_const_reference;
typedef const _T2& _T2_const_reference;
_LIBCPP_INLINE_VISIBILITY __libcpp_compressed_pair_imp() {}
_LIBCPP_INLINE_VISIBILITY __libcpp_compressed_pair_imp() : __first_() {}
_LIBCPP_INLINE_VISIBILITY explicit __libcpp_compressed_pair_imp(_T1_param __t1)
: __first_(_VSTD::forward<_T1_param>(__t1)) {}
_LIBCPP_INLINE_VISIBILITY explicit __libcpp_compressed_pair_imp(_T2_param __t2)
: _T2(_VSTD::forward<_T2_param>(__t2)) {}
: _T2(_VSTD::forward<_T2_param>(__t2)), __first_() {}
_LIBCPP_INLINE_VISIBILITY __libcpp_compressed_pair_imp(_T1_param __t1, _T2_param __t2)
_NOEXCEPT_(is_nothrow_move_constructible<_T1>::value &&
is_nothrow_move_constructible<_T2>::value)

16
libcxx/test/std/utilities/memory/util.smartptr/util.smartptr.shared/util.smartptr.shared.create/make_shared.pass.cpp
View File

@ -37,6 +37,14 @@ private:
int A::count = 0;
struct Foo
{
Foo() = default;
virtual ~Foo() = default;
};
int main()
{
int nc = globalMemCounter.outstanding_new;
@ -49,6 +57,14 @@ int main()
assert(p->get_int() == 67);
assert(p->get_char() == 'e');
}
{ // https://llvm.org/bugs/show_bug.cgi?id=24137
std::shared_ptr<Foo> p1 = std::make_shared<Foo>();
assert(p1.get());
std::shared_ptr<const Foo> p2 = std::make_shared<const Foo>();
assert(p2.get());
}
#ifndef _LIBCPP_HAS_NO_RVALUE_REFERENCES
nc = globalMemCounter.outstanding_new;
{